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Other Investments	3 Months Ended
Other Investments	Mar. 31, 2016
Investments, All Other Investments [Abstract]
Other investments	Other Investments Other investments include our investment of $37,500 in the preferred stock of Moderna LLC. Our investment is recorded at cost within other assets in our condensed consolidated balance sheets. The carrying value of this investment was not impaired as of March 31, 2016.